>>23978407It's sort of a blanket name used for the management. Nana is also (one of) the ways to say seven in Japanese so it's also the name of the company.
Kuroneko Nanashi = AniMare's manager
Ginneko Nanashi = VaPart's
Haineko Nanashi = HoneyStrap's
Mikeneko Nanashi = SugarLyric's
Muraneko Nanashi = Hiyocro's
Then just to make it more confusing the CEO is also referred to as just Nanashi.